The Burt Non-Valve boasts exclusive long-lasting filter technology designed by the British Ministry of Defence. Filtering out nearly 100% of all harmful air pollutants and viruses.

• Filters air pollution, gases, allergens, smog, and pollen
• Lightweight, breathable material
• Filters 99.6% of all viruses and 99.7% of bacteria
• Filters PM10, PM2.5, PM0.3
• Lasts up to 340 hours of active use (3 – 6 months)
• Ideal for air travel, grocery shopping, and crowded places
• Zero valve results in limited ventilation so not advised for high-intensity activities such as running, cycling, or other sport.
• Adjustable ear loops with toggles for a secure snug fit
• Presented in eco-friendly packaging for storage

Head-straps and Nose-foam are included. Valve Deactivator is not included.